- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 41/52 - Multiple coating or impregnating
Patent holdings for IPC class C04B 41/52
Total number of patents in this class: 713
10-year publication summary
|
63
|
54
|
52
|
56
|
45
|
49
|
45
|
53
|
57
|
40
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13767 |
70 |
| Rolls-Royce Corporation | 1736 |
42 |
| Rtx Corporation | 9360 |
41 |
| Safran Ceramics | 407 |
25 |
| Goodrich Corporation | 2123 |
19 |
| Centre National de La Recherche Scientifique | 10421 |
16 |
| Honeywell International Inc. | 13539 |
15 |
| Rolls-Royce High Temperature Composites, Inc. | 134 |
15 |
| Corning Incorporated | 10257 |
12 |
| Safran Aircraft Engines | 6275 |
10 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 491 |
10 |
| Sumitomo Electric Hardmetal Corp. | 1018 |
9 |
| Applied Materials, Inc. | 18589 |
9 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10923 |
8 |
| Universite de Bordeaux | 861 |
8 |
| UNILIN, besloten vennootschap | 869 |
8 |
| Axalta Coating Systems IP Co., LLC | 476 |
7 |
| SAFRAN S.A. | 615 |
6 |
| James R. Glidewell Dental Ceramics, Inc. | 246 |
6 |
| Monalisa Group Co., Ltd. | 38 |
6 |
| Other owners | 371 |